That’s a great questions. Since CES in January, it seems like a new round of Kickstarter and companies already in the LED bulb business are making more integrated LED bulbs with speakers, repeaters, security, etc… Many of them are Bluetooth and that may be a non-started, but some of the newer one are WiFi enabled. As such, I’m not sure a clear leader has emerged.
BTW, I did send similar suggestions to a few of the Bulb manufactures for them to consider integrating with ST or IFTTT.
Sorry, not much help…